Gornji Petrovci (Hungarian: Péterhegy) is a town and a municipality in Slovenia. The municipality includes 14 villages, represented in the municipal coat of arms by fourteen simplified blue houses. The shield also includes a heraldic otter holding a golden fish. The municipal holiday is 18 August, chosen as the anniversary of the crash landing of a stratospheric balloon with the Belgian pioneering baloonists Max Cosyns and Nérée van der Elst in 1934.
The majority of the population of the municipality are Lutherans, making Gornji Petrovci one of the very few Slovenian municipalities with a non-Catholic majority.
There are two churches in the village of Gornji Petrovci. The Roman Catholic Parish Church is dedicated to the Holy Trinity and is a structure that originates in the late 13th century, but was rebuilt on a number of occasions in the following centuries, preserving certain features from each phase. The relatively short nave is Romanesque, with Baroque internal fittings. The sanctuary is Late Gothic. The local Lutheran church is a large single nave building which is one of the largest Lutheran churches in Prekmurje. It was built in 1804 and renovated in 1894.
The writer Mátyás Godina and János Hüll, dean of Tótság (Slovenska okroglina), lived and died in the village. The physics teacher and irredentist Sándor Mikola was born here.